sensor ratings..

[[email protected]]

Hi again all,

What does it mean when a sensor is rated at 5 microvolts per volt per
mmHg

Does this mean that the sensor is susceptible to an error of 5
microvolts per volt of supply per mmHG pressure being measured? So the
greater the pressure being measured the higher the error would be on
it?

Cheers,
Luca

 

[John Popelish]

Hi again all,

What does it mean when a sensor is rated at 5 microvolts per volt per
mmHg

Does this mean that the sensor is susceptible to an error of 5
microvolts per volt of supply per mmHG pressure being measured? So the
greater the pressure being measured the higher the error would be on
it?

It sounds like the spec for a pressure sensitive resistive
bridge. A bridge has a sensitivity that is proportional to
the excitation voltage applied to it, and also proportional
to the pressure applied to it. So the output signal is 5
microvolts times each volt of excitation applied to it,
times each mm of mercury of pressure across it.